senator rubio yesterday did his best to sell conservative talk radio host rush limbaugh to the idea. >> border security, we need workplace enforcement, a visa tracking system. all three of those have to happen. the language has not been drafted yet. these are just principles. i agree with you, this is going to be a challenge. if in fact, this bill does not have real triggers in there, in essence, if there is not language in this bill that guarantees that nothing else will happen, i won't support it. >> i guess senator rubio working to get to the base there. but rush limbaugh has been highly critical of the president, joe, on this. >> from what i heard in reports yesterday, though, they got along very well, and he actually praised rubio. and i think what's happening right now is you have a lot of people on the right that are certainly not just rush limbaugh but a lot of people that are trying to get their arms around the fact that there are going to be republicans supporting an immigration bill. "the daily caller" yesterday had a very interesting column talking about how some conserva